vector a has a y-component a,y = +13.0m. A makes an angle of 32.0 degrees counterclockwise from the +y-axis. (a) what is the x-component of a (b) what is the magnitude of A?

Question

anonymous · Answer

|dw:1360554949357:dw| It is in the third quadrant so we know values of cosine will be negative and values of sine will be negative. From there we know that $$y = rsin (\theta)$$ so you can solve for the magnitude of the vector. From there you can find the value of the x component using $$x=rcos(\theta)$$ just remember the sines of things and you should be fine.

anonymous · Answer

Also, I apologize I drew that wrong. Counterclockwise should be above the y axis so you only need to add 180 degrees to find the coterminal angle. Only the x values will be negative. The process is still the same